eprintid: 10059413 rev_number: 16 eprint_status: archive userid: 608 dir: disk0/10/05/94/13 datestamp: 2018-10-24 16:59:14 lastmod: 2020-02-12 22:32:44 status_changed: 2018-10-24 16:59:14 type: proceedings_section metadata_visibility: show creators_name: Nistal, A creators_name: Chitwan, R creators_name: Falzon, BG creators_name: Hawkins, SC title: Amino Functionalisation of Carbon Nanotube Webs for Achieving High Structural Performance of Multifunctional Nano-enhanced Hierarchical Composites ispublished: pub divisions: UCL divisions: A01 divisions: B04 divisions: C06 divisions: F62 divisions: ZZN keywords: Carbon nanotube web, Functionalisation, Amino, Mode I fracture Toughness, Composites note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. abstract: Carbon nanotube (CNT) assemblies such as webs (CNTw) are functionalised in gas-phase reaction in order to chemically modify the CNT surface without disturbing its overall structure. It is proposed for the first time to amino functionalise CNT assemblies in gas-phase to promote bonding with epoxy matrices. Two different diamines are selected, aliphatic (ethylenediamine, EDA) and aromatic (1,5-diaminonaphtalene, DAN). The presence of the diamine molecules is confirmed by infrared spectroscopy and the amount incorporated is estimated by thermogravimetric analysis. Its influence on fracture toughness is studied using a Mode I interlaminar fracture toughness. The functionalisation of the CNTw with EDA results in an increase in GICof 20 % while the same procedure with DAN gives no improvement. This different observed behaviour is due to the different temperature required to activate the diamines to react with the epoxy rings of the epoxy system, as seen by differential scanning calorimetry. date: 2017-08-20 date_type: published publisher: ICCM official_url: http://www.iccm-central.org/Proceedings/ICCM21proceedings/ICCM21Proceedings.htm oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1593730 lyricists_name: Nistal Gonzalez, Andres lyricists_id: ANIST60 actors_name: Nistal Gonzalez, Andres actors_id: ANIST60 actors_role: owner full_text_status: public publication: ICCM International Conferences on Composite Materials place_of_pub: Xi'an, China pagerange: 3662 event_title: 21st International Conference on Composite Materials book_title: Proceedings of the 21st International Conference on Composite Materials citation: Nistal, A; Chitwan, R; Falzon, BG; Hawkins, SC; (2017) Amino Functionalisation of Carbon Nanotube Webs for Achieving High Structural Performance of Multifunctional Nano-enhanced Hierarchical Composites. In: Proceedings of the 21st International Conference on Composite Materials. (pp. p. 3662). ICCM: Xi'an, China. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10059413/1/Full%20Paper-Amino%20Functionalisation%20of%20CNTw%20for%20achieving%20high%20structural%20performance%20of%20multifunctional%20composites.pdf